HiPi::Device::SerialPort

This module is a thin wrapper around the standard CPAN module Device::SerialPort.

It is implemeted to give a simple write only interface to the UART0_TXD output pin for devices such as LCD controllers that accept commands on their RX pins without needing a connection on their TX pins. ( TX output pin on Raspberry Pi goes to RX input pin on device ).

For more complex interaction over a serial TX/RX link it is recommended to use Device::SerialPort directly.

The following interface modules use HiPi::Device::SerialPort as a backend and may contain code that helps with your own usage.

Object Constructor and Methods

my $dev = HiPi::Device::SerialPort->new();

Returns a new instance of the HiPi::Device::SerialPort class.
You can optionally specify several parameters as key
value pairs in the constructor. Their default values
are:
my $dev = HiPi::Device::SerialPort->new(
devicename => '/dev/ttyAMA0',
baudrate => 9600,
parity => 'none',
stopbits => 1,
databits => 8,
);
The devicename is passed the Device::SerialPort constructor
while all other parameters are used to set the corresponding
Device::SerialPort object properties.

$dev->write( $buffer );

Writes the $buffer to the open port using Device::SerialPort->write.
Then calls Device::SerialPort->write_drain.